121000012010 has 16 divisors (see below), whose sum is σ = 220424119776. Its totient is φ = 47816871888.

The previous prime is 121000011973. The next prime is 121000012013. The reversal of 121000012010 is 10210000121.

It is not an unprimeable number, because it can be changed into a prime (121000012013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72890744 + ... + 72892403.

It is an arithmetic number, because the mean of its divisors is an integer number (13776507486).

Almost surely, 2^121000012010 is an apocalyptic number.

121000012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121000012010 is a deficient number, since it is larger than the sum of its proper divisors (99424107766).

121000012010 is a wasteful number, since it uses less digits than its factorization.

121000012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145783237.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 121000012010 its reverse (10210000121), we get a palindrome (131210012131).

The spelling of 121000012010 in words is "one hundred twenty-one billion, twelve thousand, ten".